Door stopper



FIG. 1 is a front elevational view of a door stopper showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left sideview thereof;

FIG. 4 is a right sideview thereof;

FIG. 5 is a top planview thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view from front side thereof;

FIG. 8 is a perspective view from front side thereof;

FIG. 9 is a perspective view from rear side thereof;

FIG. 10 is a perspective view from front side thereof; and,

FIG. 11 is a perspective view from rear side thereof. 

CLAIM The ornamental design for a door stopper, as shown and described. 